Journal
EUROPEAN POLYMER JOURNAL
Volume 42, Issue 10, Pages 2247-2253Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2006.06.031
Keywords
polysulfide; styrene; methyl methacrylate; free radical copolymerization; chain transfer; triblock copolymer
Categories
Ask authors/readers for more resources
Poly(methyl methacrylate-co-styrene)-block-polysulfide-block-poly(methyl methacrylate-co-styrene) triblock copolymers were synthesized for the first time by the free radical copolymerization of methyl methacrylate (MMA) and styrene (St) in the presence of a thiocol oligomer as a chain transfer agent, followed by chemical oxidation of the remaining SH-end groups. The apparent chain transfer constant of the thiocol SH groups in the copolymerization reaction was estimated from the rate of consumption of the thiol groups versus the overall rate of consumption of the monomers (C-T = 1.28). Based on this value, the chain transfer constant of the thiocol SH groups in St polymerization was calculated (C-T(St) = 8.4). The triblock copolymers synthesized were characterized by SEC and H-1 NMR measurements. (c) 2006 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available